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Table 3 Genotypic distribution and allelic frequencies of IL-1 B polymorphisms in cases and controls.

From: Association of IL1B -511C/-31T haplotype and Helicobacter pylori vacA genotypes with gastric ulcer and chronic gastritis

   Cases  
511 T>C SNP Controls n (%) Chronic gastritis n (%) Gastric ulcer n (%) p-value
Genotype     
TT 53 (52.0) 31 (31.0) 10 (35.7) 0.015 θ
TC 39 (38.2) 60 (60.0) 13 (46.4)  
CC 10 (9.8) 9 (9.0) 5 (17.9)  
Allele     
T 0.711 0.610 0.589 0.060 θ
C 0.289 0.390 0.411  
-31 C>T SNP     
Genotype     
CC 52 (51.0) 31 (31.0) 10 (35.7) 0.027 Ω
CT 42 (41.2) 52 (52.0) 16 (57.1)  
TT 8 (7.8) 17 (17.0) 2 (7.1)  
Allele     
C 0.716 0.570 0.643 0.009 θ
T 0.284 0.430 0.357  
  1. θX2 Test Ω Fisher's exact test